Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f51037498105093…

MALICIOUS

PDF

69.5 KB Created: 2021-03-01 22:54:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 20661265b6d8c0387f40ad649d5e2778 SHA-1: a3a5aa779f6072b9d4d26206d2c05d9c54accc1e SHA-256: 6f51037498105093cc51e86c2b88a79877508feb13a9d4ff76bc6ac4e7fc7a75
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://resalured.ru/award?keyword=what+size+file+for+3%252F8+picco+chain PDF link annotation
    • https://cdn.sqhk.co/fenozidu/9JIPmly/swordsman_vr_release_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445130/normal_602f9622de0d0.pdfIn PDF document text
    • http://websporizlehd.com/photosynthesis_multiple_choice_questions_and_answersp5dbu.pdfIn PDF document text
    • http://vostokzapad.su/hindi_to_nepali_language_learning69k6p.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/XhjWjf5/jaxowipikigevusukujitik.pdfIn PDF document text
    • http://sibatike.getenjoyment.net/56981242207.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/foucault_the_order_of_things.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505363/normal_60004b67329ef.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/metal_gear_solid_5_definitive_edition.pdfIn PDF document text
    • https://tataberoxem.weebly.com/uploads/1/3/0/8/130874397/4244823.pdfIn PDF document text
    • https://cdn.sqhk.co/kewusikata/xVtichi/zunijokigeboga.pdfIn PDF document text
    • https://visofamawuri.weebly.com/uploads/1/3/2/3/132303269/webuso.pdfIn PDF document text
    • http://re-prime.ru/how_much_can_you_sue_for_discriminationn2ti8.pdfIn PDF document text
    • http://tezibif.mygamesonline.org/how_to_unscrew_stuck_lid.pdfIn PDF document text
    • https://cdn.sqhk.co/pagozixupezi/jBYIgh3/icy_hot_patch_walgreens.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424010/normal_5fe2dce0ab901.pdfIn PDF document text
    • https://suxugugufagiwa.weebly.com/uploads/1/3/4/7/134740592/8d01d7fc154352e.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/pawimis.pdfIn PDF document text
    • http://tevaruv.sportsontheweb.net/cyberpunk_2020_review_embargo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://badamowafe.onlinewebshop.net/kukifefatugazitodubiromi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d21d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD21D 5560 bytes
SHA-256: 479c4d99e364903568d89107cac449b0750f4644eb8f6da4e543fb9d0e607c5f
font_01_sfnt_off0000e525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE525 10480 bytes
SHA-256: 91b77147dcf63807d4582a46ea961834284aa23c8627ca25360b652a870dfb1a

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